{"answers":{"affected":"It affects 50 products.","exploited":"There is no known exploitation of CVE-2021-26402 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-26402 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-26402 is a high-severity memory corruption vulnerability in Amd Epyc 7232p Firmware, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-26402 and fix it if it is affected.\n\nWhat it is: CVE-2021-26402 is a high-severity memory corruption vulnerability in Amd Epyc 7232p Firmware, published on 10 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-26402 in the wild and no public exploit code.\n\nAffected product: Amd Epyc 7232p Firmware. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-26402/ (Markdown: https://insights.sbomify.com/CVE-2021-26402/index.md)","id":"CVE-2021-26402","markdown":"https://insights.sbomify.com/CVE-2021-26402/index.md","name":"CVE-2021-26402","record":{"aliases":["GHSA-f358-f8cc-67vr"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["data_modify","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"AMD EPYC firmware","requires_auth":"low_privilege","summary":"Insufficient bounds checking in AMD Secure Processor firmware allows attackers to write out-of-bounds data, compromising integrity and availability.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMD","cpe":[{"product":"epyc_7002_firmware","vendor":"amd"},{"product":"epyc_7003_firmware","vendor":"amd"},{"product":"epyc_7232p_firmware","vendor":"amd"},{"product":"epyc_7252_firmware","vendor":"amd"},{"product":"epyc_7262_firmware","vendor":"amd"},{"product":"epyc_7272_firmware","vendor":"amd"},{"product":"epyc_7282_firmware","vendor":"amd"},{"product":"epyc_72f3_firmware","vendor":"amd"},{"product":"epyc_7302_firmware","vendor":"amd"},{"product":"epyc_7302p_firmware","vendor":"amd"},{"product":"epyc_7313_firmware","vendor":"amd"},{"product":"epyc_7313p_firmware","vendor":"amd"},{"product":"epyc_7343_firmware","vendor":"amd"},{"product":"epyc_7352_firmware","vendor":"amd"},{"product":"epyc_7373x_firmware","vendor":"amd"},{"product":"epyc_73f3_firmware","vendor":"amd"},{"product":"epyc_7402_firmware","vendor":"amd"},{"product":"epyc_7402p_firmware","vendor":"amd"},{"product":"epyc_7413_firmware","vendor":"amd"},{"product":"epyc_7443_firmware","vendor":"amd"},{"product":"epyc_7443p_firmware","vendor":"amd"},{"product":"epyc_7452_firmware","vendor":"amd"},{"product":"epyc_7453_firmware","vendor":"amd"},{"product":"epyc_74f3_firmware","vendor":"amd"},{"product":"epyc_7502_firmware","vendor":"amd"},{"product":"epyc_7502p_firmware","vendor":"amd"},{"product":"epyc_7513_firmware","vendor":"amd"},{"product":"epyc_7532_firmware","vendor":"amd"},{"product":"epyc_7542_firmware","vendor":"amd"},{"product":"epyc_7543_firmware","vendor":"amd"},{"product":"epyc_7543p_firmware","vendor":"amd"},{"product":"epyc_7552_firmware","vendor":"amd"},{"product":"epyc_7573x_firmware","vendor":"amd"},{"product":"epyc_75f3_firmware","vendor":"amd"},{"product":"epyc_7642_firmware","vendor":"amd"},{"product":"epyc_7643_firmware","vendor":"amd"},{"product":"epyc_7662_firmware","vendor":"amd"},{"product":"epyc_7663_firmware","vendor":"amd"},{"product":"epyc_7702_firmware","vendor":"amd"},{"product":"epyc_7702p_firmware","vendor":"amd"},{"product":"epyc_7713_firmware","vendor":"amd"},{"product":"epyc_7713p_firmware","vendor":"amd"},{"product":"epyc_7742_firmware","vendor":"amd"},{"product":"epyc_7743_firmware","vendor":"amd"},{"product":"epyc_7763_firmware","vendor":"amd"},{"product":"epyc_7773x_firmware","vendor":"amd"},{"product":"epyc_7f32_firmware","vendor":"amd"},{"product":"epyc_7f52_firmware","vendor":"amd"},{"product":"epyc_7f72_firmware","vendor":"amd"},{"product":"epyc_7h12_firmware","vendor":"amd"}],"cvss":{"score":7.1,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Memory corruption in 2nd Gen EPYC","id":"CVE-2021-26402","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"amd:epyc_7232p_firmware","products":["amd:epyc_7232p_firmware","amd:epyc_7252_firmware","amd:epyc_7262_firmware","amd:epyc_7272_firmware","amd:epyc_7282_firmware","amd:epyc_72f3_firmware","amd:epyc_7302_firmware","amd:epyc_7302p_firmware","amd:epyc_7313_firmware","amd:epyc_7313p_firmware","amd:epyc_7343_firmware","amd:epyc_7352_firmware","amd:epyc_7373x_firmware","amd:epyc_73f3_firmware","amd:epyc_7402_firmware","amd:epyc_7402p_firmware","amd:epyc_7413_firmware","amd:epyc_7443_firmware","amd:epyc_7443p_firmware","amd:epyc_7452_firmware","amd:epyc_7453_firmware","amd:epyc_74f3_firmware","amd:epyc_7502_firmware","amd:epyc_7502p_firmware","amd:epyc_7513_firmware","amd:epyc_7532_firmware","amd:epyc_7542_firmware","amd:epyc_7543_firmware","amd:epyc_7543p_firmware","amd:epyc_7552_firmware","amd:epyc_7573x_firmware","amd:epyc_75f3_firmware","amd:epyc_7642_firmware","amd:epyc_7643_firmware","amd:epyc_7662_firmware","amd:epyc_7663_firmware","amd:epyc_7702_firmware","amd:epyc_7702p_firmware","amd:epyc_7713_firmware","amd:epyc_7713p_firmware","amd:epyc_7742_firmware","amd:epyc_7763_firmware","amd:epyc_7773x_firmware","amd:epyc_7f32_firmware","amd:epyc_7f52_firmware","amd:epyc_7f72_firmware","amd:epyc_7h12_firmware"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in 1st Gen EPYC","id":"CVE-2021-26403"},"packages":[],"prev":{"headline":"Security feature bypass in AMD Processors","id":"CVE-2021-26401"},"products":["2nd Gen EPYC","3rd Gen EPYC"],"published":"2023-01-10","related":[{"cvss_score":7.8,"headline":"Security feature bypass in 2nd Gen AMD EPYC™","id":"CVE-2020-12961","kev_date_added":null,"published":"2021-11-16"},{"cvss_score":7.5,"headline":"Denial of service in 2nd Gen EPYC","id":"CVE-2023-20529","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7.5,"headline":"Denial of service in 2nd Gen EPYC","id":"CVE-2023-20531","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":7.1,"headline":"Memory corruption in 2nd Gen AMD EPYC™","id":"CVE-2021-26370","kev_date_added":null,"published":"2022-05-10"},{"cvss_score":6.5,"headline":"Denial of service in 2nd Gen EPYC","id":"CVE-2023-20525","kev_date_added":null,"published":"2023-01-10"},{"cvss_score":5.7,"headline":"Race condition in 2nd Gen EPYC","id":"CVE-2023-20523","kev_date_added":null,"published":"2023-01-10"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-04-08","vendors":["AMD"]},"summary":"Insufficient bounds checking in AMD Secure Processor firmware allows attackers to write out-of-bounds data, compromising integrity and availability.","url":"https://insights.sbomify.com/CVE-2021-26402/"}